Technically there are 8,000 nerve endings in the penis, theyre just spread out in different parts because the clit forms into the shaft and head and the labia binds together to form the scrotum, during a baby’s growth in the womb.
And self-cleaning? Theres gotta be a catch to that because theres so much vagina that is not clean. At all.
Oh and by “sword holder” you actually mean a sheath or a cover for a sword. Not a person who wields a sword.